121420030 has 32 divisors (see below), whose sum is σ = 222354720. Its totient is φ = 47731200.

The previous prime is 121420021. The next prime is 121420043. The reversal of 121420030 is 30024121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201730 + ... + 202330.

It is an arithmetic number, because the mean of its divisors is an integer number (6948585).

Almost surely, 2^121420030 is an apocalyptic number.

121420030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121420030 is a deficient number, since it is larger than the sum of its proper divisors (100934690).

121420030 is a wasteful number, since it uses less digits than its factorization.

121420030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121420030 is about 11019.0757325649. The cubic root of 121420030 is about 495.1803988255.

Adding to 121420030 its reverse (30024121), we get a palindrome (151444151).

The spelling of 121420030 in words is "one hundred twenty-one million, four hundred twenty thousand, thirty".